[N+:1]([C:4]1[CH:15]=[CH:14][CH:13]=[CH:12][C:5]=1[CH2:6][N:7]1[CH2:11][CH2:10][CH2:9][CH2:8]1)([O-])=[O:2]>CN1CCOCC1.[Pt]>[CH2:9]1[CH2:8][N:7]([CH2:6][C:5]2[C:4]([NH:1][OH:2])=[CH:15][CH:14]=[CH:13][CH:12]=2)[CH2:11][CH2:10]1The N-(2-nitrobenzyl)-pyrrolidine (20 mmol) was dissolved in N-methyl-morpholine (20 ml). Platinum on carbon (5 mol-%, 0.17 mmol, 350 mg, Degussa Type F105 RS/W) was added. The reaction vessel was evacuated and flushed with nitrogen three times, before a hydrogen atmosphere was applied. Thin layer chromatography control showed complete consumption of the starting material after 4 hours. The platinum catalyst was removed by filtration over celite. The crude product was obtained after evaporation of all volatiles under reduced pressure in a purity of >90%, as measured by 1H NMR.
Wird geladen…